Roof Supply And Exhaust Fans For Ventilation-www.yantasy.com

Type HS Power Roof Ventilators have been tested to operate: – conituously at 650 F; – 3 Hours at 800 F; – 1.5 Hours at 1000 F; – 1/2 Hour at 1,200 F. Fans Mall Co. has introduced wide range of Heat and Smoke Removal Power Roof Ventilators. These PRVs are especially designed, built and proven by independent test to meet the need of venting hot gases and smoke in the event of fire in commercial and industrial buildings, such as factories, warehouses, parking garages, shopping malls and department stores. Type HS PRVs reliably extract large volumes of hot gases and smoke regardless of building configuration, location and weather conditions. They withstand high temperatures for long periods of time. A reliable ventilation system that can operate during a fire is both vital and essential. It prevents smoke logging, allows people to escape quickly, minimizes damages to property and contents and enables firemen to attack the fire without hindrance. These power roof ventilators have the added advantage of providing normal day to day ventilation and in many cases can also be fitted with duct work for use in multi storey buildings. The concept of venting smoke and heat was first outlined by Industrial Risk Insurers (IRI). Use of powered ventilation could eliminate the problems experienced with gravity vents. Specially designed roof mounted exhaust fans would mechanically vent heat and smoke under emergency fire conditions. In addition to the reliability and effectiveness of this powered ventilation concept, the use of HS PRVs to vent heat and smokes has these specific advantages: * It is not dependent on air temperature differential or wind direction and velocity to create air movement. * It does not rely on heat itself to activate the system. Smoke detectros and water-flow devices also may be utilized. * It provides for normal ventilation needs of the building as well as for emergency use as a vital component of the fire protection system. * There is ususally a substantial cost saving in the purchase and installation of the dual purpose system. * Maintenance cost for building and equipment is frequently reduced. * The system can be effectively used in multi storied and below grade building areas. * Reliability of operations is assured because powered ventilators are in daily use and receive regular inspection and maintenance. The unique Type HS power roof ventilators provide a solution for emergency heat and smoke venting that is dependable under the most extreme circumstances. All critical components of HS PTV that exposed to the airstream are ferrous construction to withstand high temperature conditions. These heavy gauge materials prevent warping of fan parts and malfunction at high temperatures. This also insures years of trouble-free service in normal daily operation of the PRV. The wind shroud is made of galvanized steel; an exterior finish coat of epoxy can be specified. Painted parts are coated with epoxy to provide a protective coating rated excellent for hardness, impact resistance, adhesion and chemical resistance. Belt and bearings are protected from the air stream by enclosing them in a ventilated tube. Design of HS fan incorporates a heat slinger/impeller. It isolates the fan bearings from damaging heat and draws cooler outside air through the motor compartment and over the belt and bearings. A spring loade, fusible link activated device automatically opens dampers when temperature at the fan reaches 165 F. Thei enables the fan to function as a gravity ventilator prior to powered operation. A safety disconnect switch is mounted to the PRV housing. This feature protects maintenance personnel from an accidental fan start when the unit is being serviced. Additional information can be found at the Fans Mall Company web site .barryfan.net Susana Terlicki Industrial Equipment Engineer Fans Mall Co. [email protected] .www.barryfan.net/industrial-impellers.html ..barryfan.net/airfoil-fan-blades.html Innovative Flexible Package Leak And Seal Strength Instrument By: Labthink – Flexible packages should guarantee the packed content free from bacteria contamination, and be .plete with no inferior places in the pressured conditions. Thus, sealing strength testing and integrity testing for the flexible packages are necessary. Tags: Immigration Lawyers And Their Vital Role In The Global Economy By: Fusco Browne – Corporate Immigration Services, Corporate Immigration Service Tags: Renesas Electronics India To Unveil India Market Centric Solutions At Electronica India 2015 By: Shwetha KN – Renesas Electronics India Pvt. Ltd., a subsidiary of Renesas Electronics Singapore Pte. Ltd. today announced that it will unveil its India-centric solutions developed at Renesas Electronics Indias India Solution Centre during Electronica India 2015, to be held from Sep … Tags: Hire A Banquet Hall In Houston Tx And Enjoy Unparalleled Event Facilities By: Thomas Cook – This article gives a detailed description on the services offered by leading banquet, reception and private party halls in Houston TX Tags: The Thrive .work Hosts Art Exhibition To Celebrate The 25th Anniversary Of The Americans With Disa By: Indra Public Relations – The THRIVE .work, formerly known as EDCSPIN (Evelyn Douglin Center for Serving People In Need), is a 501(c)(3), that offers programs and services to individuals to help them reach their full potential. This year marks a very special celebration as The THRIVE .work wil … Tags: Senior Workouts-stay Fit And Healthy By: MendonCottageBooks – At the present time, are you looking forward to gaining more ideas about the workouts for grownup? If, at the present time, you are looking forward to gaining more ideas about the workouts for grownup, then the e-book entitled Senior WorkoutsStay Fit and Healthy paperb … Tags: Indra Public Relations Announces The Signing Of The Thrive .work By: Indra Public Relations – The THRIVE .work announces that Indra Public Relations is the agency of record. Tags: Arabian Horses "��poetry In Motion"�� For Kids By: MendonCottageBooks – Arabian horses, also known as Arabian or Arab, are horses with finely chiseled bone structures, and refined, wedge-shaped heads. They also have large eyes, small muzzles, and large nostrils. Tags: Why Is Sleep Important To Humans By: HealthLearningSeries – There are a number of reasons why sleep is important to humans. But, let us define the meaning of sleep first. What is it? It is actually a natural periodic state of rest for the mind and body. It is during sleep that the brain in humans and other mammals undergoes a cha … Tags: Growing Greens .anically By: GardeningSeries – Are you at this instant looking forward to growing greens .anically? When you are, do you have adequate knowledge in the matter of growing greens .anically? When you do, start growing greens the .anic way now. When you do not, start it with by acquiring the e-book e … Tags: 相关的主题文章：